Effect of Hot Isostatic Pressing and Solution Heat Treatment on the Microstructure and Mechanical Properties of Ti-6Al-4V Alloy Manufactured by Selective Laser Melting

• Autorzy: Lee Dohoon , So Tae-Yeong , Yu Ha-Young , Kim Gyunsub , Moon Eushin , Ko Se-Hyun

Identyfikatory

DOI

10.24425/amm.2024.147801

• Języki publikacji: EN

Abstrakty

EN

A powder-bed-based additive manufacturing process called electron beam melting (EBM) is defined by high temperature gradients during solidification, which produces an extremely fine microstructure compared to the traditional cast material. However, porosity and segregation defects are still present on a smaller scale which may lead to a reduction in mechanical properties. It is important to have a better knowledge of the influence of post-fabrication treatments on the microstructure and mechanical characteristics before the use of additive manufacturing parts in specific applications. In this study, the effects of solution heat treatment (SHT) and hot isostatic pressing (HIP) on the microstructure and mechanical properties of Ti-6Al-4V alloy fabricated by the EBM process have been investigated. The SHT and HIP treatments can significantly improve the ductility of EBM Ti-6Al-4V due to the coarsening of α laths and the formation of β grains.

Słowa kluczowe

EN

selective laser melting; hot isostatic pressing; solution heat treatment; Ti-6Al-4V; texture

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2024
• Tom: Vol. 69, iss. 1
• Strony: 135--139
• Opis fizyczny: Bibliogr. 15 poz., fot., rys.

Twórcy

autor

Lee Dohoon

• Korea Institute of Industrial Technology (KITECH), Industrial Materials Processing R&D Department, 156, Gaetbeol-ro, Yeonsu-gu, Incheon 406-840, Republic of Korea

• https://orcid.org/0000-0003-1676-5385

autor

So Tae-Yeong

• Korea Institute of Industrial Technology (KITECH), Industrial Materials Processing R&D Department, 156, Gaetbeol-ro, Yeonsu-gu, Incheon 406-840, Republic of Korea

• https://orcid.org/0000-0002-1535-8756

autor

Yu Ha-Young

• Korea Institute of Industrial Technology (KITECH), Industrial Materials Processing R&D Department, 156, Gaetbeol-ro, Yeonsu-gu, Incheon 406-840, Republic of Korea

• https://orcid.org/0009-0009-8065-7494

autor

Kim Gyunsub

• Huneed Technologies, Incheon, Republic of Korea

• https://orcid.org/0009-0009-0757-9979

autor

Moon Eushin

• Huneed Technologies, Incheon, Republic of Korea

• https://orcid.org/0009-0001-2728-6593

autor

Ko Se-Hyun

• Korea Institute of Industrial Technology (KITECH), Industrial Materials Processing R&D Department, 156, Gaetbeol-ro, Yeonsu-gu, Incheon 406-840, Republic of Korea

• https://orcid.org/0000-0001-9886-9078

Bibliografia

• [1] H. Shipley, D. McDonnell, M. Culleton, R. Coull, R. Lupoi, G. O’Donnell, D. Trimble, Optimization of process parameters to address fundamental challenges during selective laser melting of Ti-6Al-4V: a review. Int. J. Mach. Tool. Manuf. 128, 1-20 (2018).
• [2] Q.Q. Han, R. Setchi, S.L. Evans, Synthesis and characterisation of advanced ball-milled Al-Al2O3 nanocomposites for selective laser melting. Powder Technol. 297, 183-192 (2016).
• [3] K.J. Lin, L.H. Yuan, D.D. Gu, Influence of laser parameters and complex structural features on the bio-inspired complex thin-wall structures fabricated by selective laser melting. J. Mater. Process. Tech. 267, 34-43 (2019).
• [4] D. Wang, W.H. Dou, Y.Q. Yang, Research on selective laser melting of Ti6Al4V: surface morphologies, optimized processing zone, and ductility improvement mechanism. Metals 8, 471 (2018).
• [5] B.B. He, W.H. Wu, L. Zhang, L. Lu, Q.Y. Yang, Q.L. Long, K. Chang, Microstructural characteristic and mechanical property of Ti6Al4V alloy fabricated by selective laser melting. Vacuum 150, 79-83 (2018).
• [6] H. Tekdir, A.F. Yetim, Additive manufacturing of multiple layered materials (Ti6Al4V/316L) and improving their tribological properties with glow discharge surface modification. Vacuum 184, 109893 (2021).
• [7] G. Lütjering, J.C. Williams, Titanium, (2nd ed.), Springer, Berlin pp. 15-50 (2007).
• [8] G. Wang, Z. Chen, J. Li, J. Liu, Q. Wang, R. Yang, Microstructure and Mechanical Properties of Electron Beam Welded Titanium Alloy Ti-6246. J. Mater. Sci. Technol. 34, 570-576 (2018).
• [9] X. He, G. Yu, J. Mazumder, Temperature and composition profile during double-track laser cladding of H13 tool steel. J. Phys. D Appl. Phys. 43 (2010), Article 015502.
• [10] C. Qiu, M.A. Kindi, A.S. Aladawi, et al., A comprehensive study on microstructure and tensile behaviour of a selectively laser melted stainless steel. Sci. Rep. 8, 7785 (2018).
• [11] J. Yang, H. Yu, J. Yin, M. Gao, Z. Wang, X. Zeng, Formation and control of martensite in Ti-6Al-4V alloy produced by selective laser melting. Mater. Des. 108, 308-318 (2016).
• [12] P. Kumar, O. Prakash, U. Ramamurty, Micro-and meso-structures and their influence on mechanical properties of selectively laser melted Ti-6Al-4V. Acta Mater. 154, 246-260 (2018).
• [13] L. Thijs, F. Verhaeghe, T. Craeghs, J. Van Humbeeck, J.P. Kruth, A study of the microstructural evolution during selective laser melting of Ti-6Al-4V. Acta Mater. 58, 3303-3312 (2010).
• [14] T. Voisin, N.P. Calta, S.A. Khairallah, J.-B. Forien, L. Balogh, R.W. Cunningham, A.D. Rollett, Y.M. Wang, Defects-dictated tensile properties of selective laser melted Ti-6Al-4V. Mater. Des. 158, 113-126 (2018).
• [15] Dong-Hoon Yang, Young-Kyun Kim, Yujin Hwang, Myoung-Se Kim, Kee-Ahn Lee, Effect of Dry-Electropolishing on the High Cycle Fatigue Properties of Ti-6Al-4V Alloy Manufactured by Selective Laser Melting. J. Korean Powder Metall. Inst. 26, 471-476 (2019).

Uwagi

This work was supported by the Korea Institute of Industrial Technology (Project number IR220057).